package schoolDemo3;

public class App5_1 {
    public static void main(String[] args) {

        int arr[]=new int[5];
        for(int i=0;i<5;i++)
            arr[i]=i;
        for(int i=arr.length-1;i>=0;i--)
            System.out.print("arr["+i+"]="+arr[i]+"\t");
            System.out.println("\n数组长度为："+arr.length);

    }
}
